Our Rapid Renovator is a single stage, no filler compound. Obviously it will have its limits as to what it can achieve, but it was designed as a single stage to leave a surface that does not require any further finishing after use, just protecting.

I did the other half's MINI with Menz 2400, and thought it looked pretty good in terms of depth of shine and swirl removal. But after refining with ''4000'' (they've changed the names yet again recently) i could see an improvement in colour intensity and gloss.

I wouldn;t trust myself with FG400, its a heavy cut compound, which i wouldn;t imagine is going to achieve good clarity and depth. I suppose it depends how bad the paint is you are staring with, and then the decision whether you want 99% defect removal with compromised clarity, or leave a few deeper defects for good gloss/depth.